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A method for purifying breathing air using a carbon-based monolith structure impregnated with copper, silver, zinc, and molybdenum species and triethylenediamine, wherein the monolith structure is impregnated by a multiple step process. The method of impregnation results in a carbon-based monolith s

A method for purifying breathing air using a carbon-based monolith structure impregnated with copper, silver, zinc, and molybdenum species and triethylenediamine, wherein the monolith structure is impregnated by a multiple step process. The method of impregnation results in a carbon-based monolith structure that purifies nuclear, biological, or chemical contaminants under conditions of high flow rate and low pressure drop.

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We claim: 1. A method for making a carbon-based monolith structure impregnated with copper, silver, zinc, and molybdenum species and triethylenediamine, wherein the monolith structure is impregnated by: contacting the monolith structure with a first solution; adjusting the pH of the first solution

We claim: 1. A method for making a carbon-based monolith structure impregnated with copper, silver, zinc, and molybdenum species and triethylenediamine, wherein the monolith structure is impregnated by: contacting the monolith structure with a first solution; adjusting the pH of the first solution to about 2 to 5; treating thermally the monolith structure within a temperature range of from about 280 degrees C. to about 400 degrees C.; contacting the monolith structure with a second solution; adjusting the pH of the second solution to about 8 to 11; treating thermally the monolith structure within a temperature range of from about 100 degrees C. to about 400 degrees C.; reducing the monolith structure in hydrogen within a temperature range of from about 250 degrees C. to about 500 degrees C.; and exposing the monolith structure to triethylenediamine vapor within a temperature range of from about 80 degrees C. to about 200 degrees C. 2. The method of claim 1, wherein the step, of treating thermally the monolith structure and the first solution, occurs within a temperature range from about 300 degrees C. to about 325 degrees C. 3. The method of claim 1, wherein the step, of reducing the monolith structure in hydrogen, occurs at a temperature no higher than the temperatures used in the treating thermally steps. 4. The method of claim 1, wherein the step, of exposing the monolith structure to triethylenediamine vapor, occurs within a temperature range from about 80 degrees C. to about 100 degrees C. 5. The method of claim 1 further comprising contacting the monolith structure with a third solution. 6. The method of claim 5, wherein the third solution comprises zinc acetate at a concentration within a range of from about 0.25 M to about 1.0 M. 7. The method of claim 5, wherein the third solution comprises zinc acetate at a concentration within a range of from about 0.45 M to about 0.55 M. 8. The method of claim 1, wherein the exposing step is performed for a time within a range of from about 16 hours to about 30 hours. 9. The method of claim 8, wherein the exposing step is performed for a time within a range of from about 23 hours to about 25 hours. 10. The method of claim 1, wherein the first solution comprises ammonium heptamolybdate at a concentration within a range of from about 0.03 M to about 0.3 M. 11. The method of claim 10, wherein the first solution comprises ammonium heptamolybdate at a concentration within a range of from about 0.05 M to about 0.15 M. 12. The method of claim 1, wherein the second solution comprises a copper salt at a concentration within a range of from about 0.25 M to about 1.0 M. 13. The method of claim 12, wherein the second solution comprises copper salt at a concentration within a range of from about 0.45 M to about 0.55 M. 14. The method of claim 12, wherein the first solution comprises copper salt at a concentration within a range of from about 0.45 M to about 0.55 M. 15. The method of claim 1, wherein the second solution comprises a silver salt at a concentration within a range of from about 0.001 M to about 0.01 M. 16. The method of claim 1, wherein the second solution comprises silver salt at a concentration within a range of from about 0.002 M to about 0.005 M. 17. The method of claim 1, wherein each of the adjusting steps is followed by a step of removing the monolith structure from the solution. 18. The method of claim 1, wherein the treating thermally steps are performed within a nitrogen atmosphere. 19. The method of claim 1, wherein the step of contacting the monolith structure with the first solution is preceded by exposing the monolith structure to concentrated nitric acid, carbon dioxide, steam, or mixtures thereof. 20. A method for making a carbon-based monolith structure impregnated with copper, silver, zinc, and molybdenum species and triethylenediamine, wherein the monolith structure is impregnated by: contacting the monolith structure with a first solution; adjusting the pH of the first solution to about 8 to about 11; treating thermally the monolith structure within a temperature range of from about 100 degrees C. to about 400 degrees C.; contacting the monolith structure with a second solution; adjusting the pH of the second solution to about 2 to about 5; treating thermally the monolith structure within a temperature range of from about 280 degrees C. to about 400 degrees C.; reducing the monolith structure in hydrogen within a temperature range of from about 250 degrees C. to about 500 degrees C.; and exposing the monolith structure to triethylenediamine vapor within a temperature range of from about 80 degrees C. to about 200 degrees C. 21. The method of claim 20, wherein the step, of exposing the monolith structure to triethylenediamine vapor, occurs within a temperature range from about 80 degrees C. to about 100 degrees C. 22. The method of claim 20 further comprising contacting the monolith structure with a third solution. 23. The method of claim 22, wherein the third solution comprises zinc acetate at a concentration within a range of from about 0.25 M to about 1.0 M. 24. The method of claim 22, wherein the third solution comprises zinc acetate at a concentration within a range of from about 0.45 M to about 0.55 M. 25. The method of claim 20, wherein the exposing step is performed for a time within a range of from about 16 hours to about 30 hours. 26. The method of claim 25, wherein the exposing step is performed for a time within a range of from about 23 hours to about 25 hours. 27. The method of claim 20, wherein the second solution comprises ammonium heptamolybdate at a concentration within a range of from about 0.03 M to about 0.3 M. 28. The method of claim 27, wherein the second solution comprises ammonium heptamolybdate at a concentration within a range of from about 0.05 M to about 0.15 M. 29. The method of claim 20, wherein the first solution comprises a copper salt at a concentration within a range of from about 0.25 M to about 1.0 M. 30. The method of claim 20, wherein the first solution comprises a silver salt at a concentration within a range of from about 0.001 M to about 0.01 M. 31. The method of claim 20, wherein the first solution comprises silver salt at a concentration within a range of from about 0.002 M to about 0.005 M. 32. The method of claim 20, wherein each of the adjusting steps is followed by a step of removing the monolith structure from the solution. 33. The method of claim 20, wherein the treating thermally steps are performed within a nitrogen atmosphere.